Flag display device



FIG. 1 is a rear perspective view of a flag display device showing my new design;

FIG. 2 is a rear view of the flag display device thereof;

FIG. 3 is a front view of the flag display device thereof;

FIG. 4 is right side view of the flag display device thereof;

FIG. 5 is a left side view of the flag display device thereof;

FIG. 6 is a top view of the flag display device thereof; and,

FIG. 7 is a bottom view of the flag display device thereof.

The broken lines in the figures are for the purpose of illustrating portions of the flag display device, which form no part of the claimed design. 

CLAIM The ornamental design for a flag display device, as shown and described. 